To simplify the expression, we can rewrite each term as a fraction:

(1 + 1/1.3) = (1.3/1.3 + 1/1.3) = 2.3/1.3
(1 + 2.4) = (3.4/1)
(1 + 1/3.5) = (3.5/3.5 + 1/3.5) = 4.5/3.5

Continuing this pattern, we can rewrite the expression as:

(2.3/1.3)(3.4/1)(4.5/3.5)....(2005.2006/2004.2006)

Notice that many terms cancel out:

(1.3/1.3) cancels out with (3.4/3.4)
(1/3.5) cancels out with (4.5/4.5)
...
(2004.2006/2004.2006) cancels out with (2005.2006/2005.2006)

After canceling out all the terms, we are left with:

2.3/1 * 3.4/1 * 4.5/3.5 * ... * 2005.2006/2004.2006

This simplifies to:

(2.3 * 3.4 * 4.5 * ... * 2005.2006) / (1 * 1 * 3.5 * ... * 2004.2006)

Now, we can see that each numerator is just the product of consecutive integers, and each denominator is the product of consecutive integers. Therefore, we can rewrite the expression as:

(2005.2006!) / (1.3 * 3.5 * ... * 2004.2006)

Now, we can simplify further by canceling out terms:

(2005.2006!) / (1.3 * 3.5 * ... * 2004.2006)
= (2005.2006!) / (1 * 2 * 3 * ... * 2004)

Finally, we can simplify the expression to:

2005.2006! / 2004!